William "Chops" Westfield wrote:

> (Some of the secret is in trusting that the compiler will do =20
> reasonable things given standardish syntax.  PORTB |=3D 2 had better =20
> compile to a single BSF instruction when possible (for example), or =20
> you go yell at the compiler vendor.)

Part of /this/ secret is reading the compiler documentation (assuming,
of course, that you use a compiler that has decent documentation). It
should in enough detail address everything that is not standard C -- for
example, how it handles bits, ports, stack, variable banks, recursion,
pointers etc.

Don't go yell at the vendor before having read the docs... :)

Gerhard
--=20
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